Jay Martin
Active Member
Yamaha motor mounting issue..Hummm! Not sure! What are you trying to say??? Yamaha setup on an Allison is not common. All I can say is Yamaha's are heavy vs. the Mercs so the 12-14inch setback is not needed. I did not measure the height with the spacers, they are gone now. Todd at Hydromotive says the quad 4 o/t should be running at 1/4 below and 1/4-3/8 above is getting in the danger zone. Yesterday I was between 1/4 and even with the 89.97 run.
Keep in mind the load I'm carrying, there is at lest 150-175 lbs in the front stoage on the front deck, full tank of gas, batterys (group 27) big trolling motor up front.
The guy I bought the boat from was running a 97 merc 225 promax, he said his best was about 92.
Keep in mind the load I'm carrying, there is at lest 150-175 lbs in the front stoage on the front deck, full tank of gas, batterys (group 27) big trolling motor up front.
The guy I bought the boat from was running a 97 merc 225 promax, he said his best was about 92.
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